AutoCodes – Chevrolet – P216B 2018 Chevrolet Silverado

P216B 2018 Chevrolet Silverado Code - Cylinder 5 Injector High Control Circuit Low Voltage

Quick Answer

The Engine Control Module (ECM) supplies voltage to each fuel injector on the high control circuits. Common causes include Faulty Fuel Injector 5, Fuel Injector 5 harness is open or shorted, Fuel Injector 5 circuit poor electrical connection. Severity is High - diagnose this code as soon as possible. Driving is not recommended if the warning light is flashing, the engine runs poorly, or safety-related symptoms are present.

What it means: P216B 2018 Chevrolet Silverado indicates Cylinder 5 Injector High Control Circuit Low Voltage.
Common causes: Common causes include Faulty Fuel Injector 5, Fuel Injector 5 harness is open or shorted, Fuel Injector 5 circuit poor electrical connection.
Severity: High - diagnose this code as soon as possible.
Can I drive?: Driving is not recommended if the warning light is flashing, the engine runs poorly, or safety-related symptoms are present.

Save to My Repairs My Repairs

AI answers can be wrong. Verify repairs with testing. Open full chat

Code Popularity 478

How popular is this code, among other codes? Low

Repair Importance Level

Urgent (Diagnose now) (3 / 3)

Repair Difficulty Level

Advanced (Pro) (3 / 3)

What is this?

Table of contents Created and updated by William Orellana on Sep 08, 2022

Description
Possible Causes
How To Fix
Cost to Diagnose
FAQs
Comments
Add Comment

💬 Need more help? Ask Coddy for instant answers — it's free!

Code P216B 2018 Chevrolet Silverado Description

The Engine Control Module (ECM) supplies voltage to each fuel injector on the high control circuits. The ECM energizes each fuel injector by grounding the low control circuit of the fuel injector. The ECM monitors the status of the fuel injector circuits. When a fuel injector circuit condition is detected by the ECM, the affected fuel injector(s) is disabled. The Diagnostic Trouble Code (DTC) will be set when the ECM detects the fuel injector high voltage supply circuit is shorted to ground for greater than 2 s.

OBDII Code P216B 2018 Chevrolet Silverado - Cylinder 5 Injector High Control Circuit Low Voltage - AutoCodes.com — P216B 2018 Chevrolet Silverado Code - Cylinder 5 Injector High Control Circuit Low Voltage

What does this mean?

What are the Possible Causes of the DTC P216B 2018 Chevrolet Silverado?

Faulty Fuel Injector 5
Fuel Injector 5 harness is open or shorted
Fuel Injector 5 circuit poor electrical connection
Faulty Engine Control Module (ECM)

How to Fix the DTC P216B 2018 Chevrolet Silverado?

Review the 'Possible Causes' above and visually examine the corresponding wiring harness and connectors. Check for damaged components and inspect connector pins for signs of being broken, bent, pushed out, or corroded.

What is the Cost to Diagnose the Code?

Labor: 1.0

To diagnose the P216B 2018 Chevrolet Silverado code, it typically requires 1.0 hour of labor. Rates vary by location, vehicle, and shop. Many shops charge between $80–$150 per hour; dealerships and metro areas may be higher, independents may be lower.

Need more information about the P216B 2018 Chevrolet Silverado code?

Need more information on how to fix the P216B 2018 Chevrolet Silverado code? Get Access to Factory Service Manuals

Need Help with the Code?

Get the P216B 2018 Chevrolet Silverado code diagnosed by a professional: Find a repair shop in your area

About the author: William Orellana is a Master Mechanic and Mechanical Engineer with over 30 years of experience diagnosing and repairing vehicles. Learn more about his background.

Frequently Asked Questions about P216B 2018 Chevrolet Silverado Code

1. What does the OBDII code P216B on a 2018 Chevrolet Silverado indicate?

The code P216B indicates that there is an issue with the high control circuit of the cylinder 5 fuel injector, specifically indicating low voltage in the circuit.

2. What are the common symptoms of code P216B in a 2018 Chevrolet Silverado?

Symptoms can include a rough running engine, decreased fuel efficiency, an engine misfire, and a check engine light that is illuminated.

3. What can cause the P216B code to appear on a 2018 Chevrolet Silverado?

Potential causes include a faulty fuel injector, issues with the wiring or connectors leading to the injector (such as fraying or disconnections), or a problem with the engine control module (ECM).

4. How do I diagnose the P216B code in my 2018 Chevrolet Silverado?

Diagnosis should start with a visual inspection of the wiring and connectors for damage or loose connections. Next, the resistance and voltage of the fuel injector should be tested to ensure they are within specifications. Finally, ECM functionality may need to be assessed with specialized diagnostic tools.

5. How can I fix the P216B code in my 2018 Chevrolet Silverado?

Repairs might involve replacing the faulty injector, repairing or replacing damaged wiring or connectors, or in some cases, reprogramming or replacing the ECM.

6. Is it safe to drive my 2018 Chevrolet Silverado with the P216B code?

While you may be able to drive the vehicle, doing so with a misfiring cylinder can lead to further damage to the engine or other components. It is advisable to address the issue as soon as possible.

7. Will the P216B code clear on its own once repairs are made on my 2018 Chevrolet Silverado?

Yes, after the underlying issue is fixed, the code should clear. However, a diagnostic scanner may be needed to reset the check engine light and clear the code from the ECM memory.

8. What tools are necessary to diagnose the P216B code?

You will typically need a digital multimeter to test the electrical properties and a diagnostic scanner capable of interfacing with the vehicleâ€™s ECM to read detailed fault codes and live data.